Twisting roller with a locking and cutting mechanism for wire ends

ABSTRACT

The present invention provides an improved twisting roller with a wire ends locking and cutting mechanism. The twisting roller includes a spool, a baffle plate at both ends, and a housing externally on the twisting roller. The locking groove and cutting groove are assembled onto the baffle plate of the twisting roller or hanging piece of the housing. A cutter is assembled into the cutting groove. The wires can be pulled through the locking groove and cutting groove for direct cutting. After the wires are cut, the wire ends are locked securely into the locking groove, and a portion is exposed for convenient operation and fixation with improved applicability.

CROSS-REFERENCE TO RELATED U.S. APPLICATIONS

Not applicable.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT

Not applicable.

REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC

Not applicable.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a twisting roller, and moreparticularly to an innovative roller which allows a locking groove andcutting groove to be assembled onto the baffle plate or housing forcutting and fixing wires.

2. Description of Related Art Including Information Disclosed Under 37CFR 1.97 and 37 CFR 1.98.

The twisting roller of the present invention is an auxiliary tool thatis widely applied to the construction and decoration industry. Itgenerally has a circular shaft with expanded plate at both ends, where aring groove for reeling of wires is defined externally onto the circularshaft. When the existing twisting roller is employed, the operatorsshall pull out the wires to a predefined length, then cut the wires withtools, pliers or burn out the wires with a cigarette lighter. However,when the twisting roller is applied to a flat location for horizontal orvertical measurement, the operators are often positioned on the scaffoldor at dangerous site, and have to manually grasp the wires on thetwisting roller while using pliers or lighters. In such case, there isthe danger that operators may lose their balance. From anotherviewpoint, given the fact that the wires on twisting roller are made offlexible materials, the workers may find it difficult to cut off thewires with commonly used pliers. Also, the flame of the lighters maypossibly be extinguished due to strong winds at the work site, leadingto inconvenience and inapplicability.

Because there is no locking feature provided for the existing twistingroller and because the wires present excellent flexibility and slidingproperties, the wire ends are possibly loosened, leading to inconvenientcarrying and time-consuming rearrangement. Some users insert the wireends into the winding wires, but find it difficult to search for them.

Thus, to overcome the aforementioned problems of the prior art, it wouldbe an advancement in the art to provide an improved structure that cansignificantly improve efficacy.

Therefore, the inventor has provided the present invention ofpracticability after deliberate design and evaluation based on years ofexperience in the production, development and design of relatedproducts.

BRIEF SUMMARY OF THE INVENTION

There is improved efficacy of the present invention.

Based upon innovative structures, the baffle plate or housing of thetwisting roller is provided additionally with a locking groove andcutting groove. The wires can be pulled through the cutting groove ofthe shield for direct cutting. As such, the operators could rapidlyfinish the cutting action more efficiently and safely without the needof other tools or a cigarette lighter.

After the wires are cut, the wire ends are locked securely into thelocking groove, and a portion is exposed for convenient operation andfixation.

Although the invention has been explained in relation to its preferredembodiment, it is to be understood that many other possiblemodifications and variations can be made without departing from thespirit and scope of the invention as hereinafter claimed.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 shows an entire perspective view of twisting roller of the firstpreferred embodiment of the present invention.

FIG. 2 shows an exploded perspective view of the improved portion of thefirst preferred embodiment of the present invention.

FIG. 3 shows a transverse sectional view of the improved portion of thefirst preferred embodiment of the present invention.

FIG. 4 shows a schematic view of the operation of the first preferredembodiment of the present invention.

FIG. 5 shows another schematic view of the operation of the firstpreferred embodiment of the present invention.

FIG. 6 shows an assembled perspective view of the second preferredembodiment of the present invention.

FIG. 7 shows an exploded perspective view of the second preferredembodiment of the present invention.

FIG. 8 shows a partially exploded perspective view of the secondpreferred embodiment of the present invention.

FIG. 9 shows an assembled sectional view of the second preferredembodiment of the present invention.

FIG. 10 shows an assembled perspective view of the third preferredembodiment of the present invention.

FIG. 11 shows a partially exploded perspective view of the thirdpreferred embodiment of the present invention.

FIG. 12 shows an elevation view and partially sectional view of thethird preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The features and the advantages of the present invention will be morereadily understood upon a thoughtful deliberation of the followingdetailed description of a preferred embodiment of the present inventionwith reference to the accompanying drawings.

FIGS. 1-3 depict the first preferred embodiment of twisting roller withwire ends locking and cutting mechanism. The twisting roller 10comprises a spool 11 (a circular shaft in this embodiment) for windingof wires 12 (e.g. nylon wire). Both ends of the spool 11 are providedseparately with an expanded baffle plate 13 (a disc in this embodiment).A cutter 20 and a shield 30 are placed at one end of at least one baffleplate 13 of the twisting roller 10. The single-blade cutter 20 isassembled between the baffle plate 13 and shield 30. A locking groove 31and a cutting groove 32 are assembled at both sides of the shield 30.The locking groove 31 locks the wire 12 (e.g. U-shaped), so that theblade 21 of said cutter 20 is exposed to the cutting groove 32 forcutting wire 12.

The baffle plate 13 of the twisting roller 10 is provided with a trough14 for accommodating the cutter 20 and shield 30. As such, the cutter 20and shield 30 present smoothness after assembly, meanwhile the cutter 20is embedded (shown in FIG. 3) to avoid hurting the users.

Furthermore, the baffle plate 13 of the twisting roller 10 is providedwith a button 15, whilst assembly holes 22, 33 are placed opposite tothe cutter 20 and shield 30. So, the cutter 20 and shield 30 areassembled and positioned on the baffle plate 13 of the twisting roller.

Referring to FIGS. 4 and 5, the wire 12 can be pulled through thelocking groove 31 of the shield 30, then pulled through the cuttinggroove 32, and cut off by the blade 21 of the cutter 20, so that thewire ends are locked into the locking groove 31 and protrude (shown in Aof FIG. 5) for convenient operation.

FIGS. 6, 7, 8, and 9 depict the second preferred embodiment of atwisting roller with wire ends locking and cutting mechanism. Thetwisting roller 10 comprises a spool 11 for winding of wire. Both endsof the spool 11 are provided separately with an expanded baffle plate13. A housing 40 is assembled externally onto the twisting roller 10. Ahanging piece 41 is placed on top of the housing. Hanging hole 412 andholding hole 413 are arranged onto the hanging piece. A locking groove51 and a cutting groove 52 are assembled at both sides of the hangingpiece 41, while the blade of cutter 60 is enabled to be exposed into thecutting groove 52. The housing 40 of the preferred embodiment iscomposed of two semi-circular housings 401 and 402, so that button 42and locking hole 43 are arranged on the assembly surface. Moreover, arecession 53 is placed laterally onto the cutting groove 52. Apositioning pin 54 is placed into the recession, enabling assembly andpositioning with the cutter 60 of positioning slot 61. A convex portion44 is placed at both ends of the housing 40 and used to prevent the wire12 being trapped between the housing 40 and twisting roller 10.

FIGS. 10, 11, and 12 depict the third preferred embodiment of a twistingroller with wire ends locking and cutting mechanism. The difference fromthe second preferred embodiment is that the housing 40B is of a singleΠ-shaped structure. A flexible clipping arm 45 is extended towards thebottom of both ends of the housing 40B, while a cylindrical axle block46 protrudes at two ends of the clipping arm opposite to clipping arm 16at the center of twisting roller 10. So, the axle block inserted intoaxle hole 16 (shown in FIG. 12) allows the housing 40B to be coupledwith the twisting roller 10. Similar to the second preferred embodiment,a recession 53B is placed laterally onto the cutting groove 52B. Apositioning pin 54B is placed into the recession, enabling assembly andpositioning with the cutter 60 of positioning slot 61. A convex portion44B is placed at both ends of the housing 40B and used to prevent thewire 12 being trapped between the housing 40B and twisting roller 10.

The cutting and fixing methods and the operating principle of the secondand third preferred embodiments are the same with the first one.

1. A twisting roller, comprising: a spool having wires would thereon; anexpanded baffle plate at both ends of said spool; a cutter and a shield,assembled onto the baffle plate said cutter being assembled between thebaffle plate and shield; and a locking groove and cutting groove,assembled separately at both ends of said shield, said cutter having ablade exposed to said cutting groove.
 2. The roller defined in claim 1,wherein the baffle plate is provided with a trough for assembly of saidcutter and said shield.
 3. The roller defined in claim 1, wherein thebaffle plate is provided with a button, and an assembly hole, saidassembly hole being placed oppositely said cutter and said shield, saidcutter and said shield being assembled and positioned onto the baffleplate.
 4. A twisting roller, comprising: a spool, having wires wouldthereon; an expanded baffle plate at both ends of said spool; a housing,being assembled externally and having a hanging piece located on top ofsaid housing; and a locking groove and cutting groove, assembledseparately at both ends of said hanging piece, said cutter having ablade exposed to the cutting groove.
 5. The roller defined in claim 4,wherein said housing is comprised of two semi-circular housings, saidhousing having an assembly surface with a button and locking holearranged thereon.
 6. The roller defined in claim 4, wherein said housingis of a single Π-shaped structure, said housing having a flexibleclipping arm is extended towards a bottom of both ends of said housing,the clipping arm having an axle block is protruded at two ends thereofopposite to a center.
 7. The roller defined in claim 4, furthercomprising: a recession placed laterally onto the cutting groove; and apositioning pin placed into said recession, enabling assembly andpositioning with said cutter.
 8. The roller defined in claim 4, whereinboth ends of said housing have a convex portion, preventing wires frombeing trapped by said housing.